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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 164544
Prefixes after maximum aggregation: 95223
Unique aggregates announced to Internet: 79265
Total ASes present in the Internet Routing Table: 19820
Origin-only ASes present in the Internet Routing Table: 17259
Origin ASes announcing only one prefix: 8087
Transit ASes present in the Internet Routing Table: 2561
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1414414688
Equivalent to 84 /8s, 78 /16s and 65 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77625
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33911
Total APNIC prefixes after maximum aggregation: 15783
Prefixes being announced from the APNIC address blocks: 31810
Unique aggregates announced from the APNIC address blocks: 15920
APNIC Region origin ASes present in the Internet Routing Table: 2289
APNIC Region origin ASes announcing only one prefix: 671
APNIC Region transit ASes present in the Internet Routing Table: 351
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186495872
Equivalent to 11 /8s, 29 /16s and 179 /24s
Percentage of available APNIC address space announced: 69.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 88725
Total ARIN prefixes after maximum aggregation: 54007
Prefixes being announced from the ARIN address blocks: 69202
Unique aggregates announced from the ARIN address blocks: 25418
ARIN Region origin ASes present in the Internet Routing Table: 9991
ARIN Region origin ASes announcing only one prefix: 3656
ARIN Region transit ASes present in the Internet Routing Table: 940
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249304576
Equivalent to 14 /8s, 220 /16s and 22 /24s
Percentage of available ARIN address space announced: 70.8
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31296
Total RIPE prefixes after maximum aggregation: 21579
Prefixes being announced from the RIPE address blocks: 28344
Unique aggregates announced from the RIPE address blocks: 19063
RIPE Region origin ASes present in the Internet Routing Table: 6724
RIPE Region origin ASes announcing only one prefix: 3534
RIPE Region transit ASes present in the Internet Routing Table: 1105
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 207822016
Equivalent to 12 /8s, 99 /16s and 28 /24s
Percentage of available RIPE address space announced: 72.9
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8928
Total LACNIC prefixes after maximum aggregation: 3085
Prefixes being announced from the LACNIC address blocks: 7319
Unique aggregates announced from the LACNIC address blocks: 4237
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 191
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19132960
Equivalent to 1 /8s, 35 /16s and 242 /24s
Percentage of available LACNIC address space announced: 57.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1659
Total AfriNIC prefixes after maximum aggregation: 769
Prefixes being announced from the AfriNIC address blocks: 1011
Unique aggregates announced from the AfriNIC address blocks: 779
AfriNIC Region origin ASes present in the Internet Routing Table: 127
AfriNIC Region origin ASes announcing only one prefix: 35
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2289664
Equivalent to 0 /8s, 34 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 6.8
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 912 5150 191 CHINANET-BACKBONE
9583 755 55 63 Sify Limited
1221 753 1438 542 Telstra Pty Ltd
4755 603 246 123 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
7545 501 104 71 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 372 77 76 Primus Telecommunications
9929 364 221 48 China Netcom Corp.
10036 340 56 306 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
9498 321 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
4808 310 250 172 CNCGROUP IP network: China169
7474 307 271 211 SingTel Optus Pty Ltd
4802 278 47 158 Wantree Development
18302 269 108 145 SK Global co., Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
703 254 277 208 UUNET - Commercial IP service
2764 254 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6476 973 AT&T WorldNet Services
174 1200 5612 1027 Cogent Communications
4323 1123 647 217 Time Warner Telecom
721 1110 21787 313 DLA Systems Automation Center
701 1014 8171 852 UUNET Technologies, Inc.
6197 915 498 441 BellSouth Network Solutions,
1239 896 2873 648 Sprint
2386 857 533 638 AT&T Data Communications Serv
18566 816 224 7 Covad Communications
209 652 3505 496 Qwest
20115 615 492 311 Charter Communications
27364 564 43 18 Armstrong Cable Services
3356 562 10824 431 Level 3 Communications, LLC
3602 539 123 100 Sprint Canada, Inc.
3561 534 2384 420 Savvis
852 526 1094 389 Telus Advanced Communications
22773 490 1188 23 Cox Communications, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
7725 483 60 15 MediaOne
6198 466 386 221 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2001 487 UUNET - Commercial IP service
3320 305 3232 241 Deutsche Telekom AG
3301 297 1085 285 TeliaNet Sweden
8220 271 469 266 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 231 254 214 Romania Data Systems S.A.
3246 228 490 223 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 170 340 102 LANLINK autonomous system
6746 167 47 146 Dynamic Network Technologies,
3269 166 1496 69 TELECOM ITALIA
5400 162 285 136 BT Ignite European Backbone
8866 161 21 11 Bulgarian Telecommunication C
3300 154 184 86 AUCS Communications Services
6830 137 513 27 UPC Distribution Services
25186 135 137 95 France Telecom Transpac's Tra
1273 131 170 94 Cable & Wireless Deutschland
9051 131 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 381 600 150 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
6147 199 110 21 Telefonica Del Peru
11664 196 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 19 Telecom Argentina Stet-France
6505 133 90 89 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 130 64 3 Cable-Wireless Panama
13999 113 52 9 Mega Cable S.A. de C.V.
19632 108 14 5 Metropolis Intercom S.A.
18822 107 7 13 TELEFONICA MANQUEHUE
6503 106 146 72 AVANTEL, S.A.
19169 105 7 20 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
23216 95 24 23 RAMtelecom Telecomunicaciones
21826 94 12 19 INTERCABLE
11311 89 8 18 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 119 15 17 Internet Egypt Network
20928 94 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 82 28 6 TEDATA
2905 74 266 66 The Internetworking Company o
24835 64 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 45 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
21491 18 1 2 UTL On-line is RF broadband I
7460 17 3 5 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1123 906 Time Warner Telecom
18566 816 809 Covad Communications
721 1110 797 DLA Systems Automation Center
4134 912 721 CHINANET-BACKBONE
9583 755 692 Sify Limited
27364 564 546 Armstrong Cable Services
4755 603 480 Videsh Sanchar Nigam Ltd. Aut
6197 915 474 BellSouth Network Solutions,
7725 483 468 MediaOne
22773 490 467 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 539 439 Sprint Canada, Inc.
7545 501 430 TPG Internet Pty Ltd
6467 420 386 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 403 327 ImpSat
4766 595 316 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 615 304 Charter Communications
9443 372 296 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65009 PRIVATE 69.39.0.0/20 21803 1st Class Internet S
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
50.160.0.0/13 1221 Telstra Pty Ltd
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
172.32.0.0/24 7011 Citizens Utilities
192.43.230.0/24 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.169.0.0/23 3970 RGnet, Inc.
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:8 /11:15 /12:71
/13:158 /14:308 /15:603 /16:8421 /17:2569 /18:4430
/19:10383 /20:11271 /21:9218 /22:12676 /23:13749 /24:89706
/25:330 /26:276 /27:147 /28:44 /29:29 /30:77
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 800 816 Covad Communications
6197 746 915 BellSouth Network Solutions,
7018 687 1496 AT&T WorldNet Services
2386 607 857 AT&T Data Communications Serv
9583 571 755 Sify Limited
27364 555 564 Armstrong Cable Services
4323 536 1123 Time Warner Telecom
7725 454 483 MediaOne
4766 412 595 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 378 896 Sprint
702 366 594 UUNET - Commercial IP service
6198 341 466 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 294 420 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
15270 275 295 PaeTec.net -a division of Pae
6517 273 295 Yipes Communications, Inc.
11456 270 309 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1553 13:1 15:9 16:2
17:3 18:3 20:4 24:1163 30:2 32:69
33:4 38:126 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:52
61:812 62:609 63:1892 64:2741 65:2067 66:2876
67:578 68:526 69:1041 70:112 71:9 72:219
80:582 81:553 82:417 83:268 84:184 85:248
86:20 128:189 129:171 130:88 131:296 132:37
133:1 134:150 135:40 136:184 137:69 138:167
139:61 140:192 141:102 142:148 143:145 144:185
145:33 146:287 147:108 148:301 149:171 150:105
151:65 152:106 153:86 154:5 155:142 156:78
157:97 158:160 159:170 160:77 161:67 162:322
163:91 164:211 165:178 166:160 167:234 168:421
169:140 170:310 171:8 172:1 192:5724 193:3172
194:2418 195:1559 196:660 198:3920 199:3298 200:3994
201:149 202:5675 203:6318 204:3776 205:2008 206:2512
207:2808 208:2054 209:3300 210:1709 211:844 212:1213
213:1320 214:263 215:31 216:3456 217:1143 218:206
219:108 220:387 221:227 222:107
End of report
